# Nathan Ashcroft

Physics teacher | Tutor for 8 years

I hold a degree in Physics from Eastern Mennonite University. With a passion for unraveling the mysteries of the universe, I thrive on sharing my knowledge with students. From classical mechanics to quantum theory, I offer clear explanations and engaging lessons to foster deep understanding. Let's explore the wonders of physics together, tackling questions across various subjects.

## Questions

An object, previously at rest, slides #5 m# down a ramp, with an incline of #(3pi)/8 #, and then slides horizontally on the floor for another #15 m#. If the ramp and floor are made of the same material, what is the material's kinetic friction coefficient?

An object with a mass of #1 kg#, temperature of #105 ^oC#, and a specific heat of #32 J/(kg*K)# is dropped into a container with #16 L # of water at #0^oC #. Does the water evaporate? If not, by how much does the water's temperature change?

How do you normalize #(- 4i + 5 j- k)#?

How can I find the net electric force?

A ball with a mass of #400 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #64 (kg)/s^2# and was compressed by #3/4 m# when the ball was released. How high will the ball go?

What is the gravitational potential energy of a # 29 kg# object on a shelf # 5/6 m # high?

A container with a volume of #25 L# contains a gas with a temperature of #150^o K#. If the temperature of the gas changes to #320 ^o K# without any change in pressure, what must the container's new volume be?

If a rocket with a mass of #8000 " tons" # vertically accelerates at a rate of # 4 m/s^2#, how much power will the rocket have to exert to maintain its acceleration at 3 seconds?

A balanced lever has two weights on it, the first with mass #14 kg # and the second with mass #9 kg#. If the first weight is # 2 m# from the fulcrum, how far is the second weight from the fulcrum?

A projectile is shot from the ground at an angle of #pi/4 # and a speed of #3/2 m/s#. Factoring in both horizontal and vertical movement, what will the projectile's distance from the starting point be when it reaches its maximum height?

What is the gravitational potential energy of a # 4 kg# object on a shelf # 3/5 m # high?

What is the unit vector that is normal to the plane containing #( i +k )# and #(2i+ j - 3k)?

How does acceleration affect motion?

If a current of #7 A# passing through a circuit generates #35 W# of power, what is the resistance of the circuit?

A spring with a constant of #3 (kg)/s^2# is lying on the ground with one end attached to a wall. An object with a mass of #2 kg# and speed of #9 m/s# collides with and compresses the spring until it stops moving. How much will the spring compress?

How does specific heat relate to how fast a substance changes temperature?

A girl who weighs 30 kg is inline skating at a speed of 5 m/s. What is the girl's kinetic energy?

A projectile is shot from the ground at an angle of #pi/4 # and a speed of #3 m/s#. Factoring in both horizontal and vertical movement, what will the projectile's distance from the starting point be when it reaches its maximum height?

If a projectile is shot at an angle of #(5pi)/12# and at a velocity of #16 m/s#, when will it reach its maximum height??

The kinetic energy of an object with a mass of #3 kg# constantly changes from #60 J# to #270 J# over #8 s#. What is the impulse on the object at #5 s#?